Source-of-truth, not re-licensed
We pull directly from the Companies House submission stream, typically within ~3.4 minutes of each filing. Bureaus re-license curated extracts on a quarterly cycle — they're months behind a fresh print.
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UK Regional Snapshot · London
2026 Financial Stability Report:
2026 Financial Stability Report:
London
London leads the 2026 UK regional sample with 113 active filers, £9.6M average revenue and a 23.31% average operating margin — the strongest combination of scale and profitability in the directory, and the de-facto national benchmark against which other regions are compared.
Active Firms (Sample)
113
2026 active filers, FY25 close
Average Revenue
£9.6M
Per firm, latest filing
Average Margin
23.31%
Operating profit / turnover
Risk Grade
A-
Aggregate stability score
Why this data is more accurate
than Companies House.
Companies House publishes the filings. We parse them — every iXBRL submission, every business day, against 41 named stability checks. The numbers on this page reflect the live UK population, not the curated extract that bureaus re-license a quarter behind.
Tag-level, not summary-level
Companies House publishes the iXBRL filing itself. Most credit bureaus throw away the underlying tags. We keep every tag — staff costs, current ratio, debt/equity — and recompute the regional distribution daily.
Auditable, not aggregated
Every statistic on this page is traceable to the underlying filings. Click any number on the API and you get the list of London-registered companies that produced it, with the originating Companies House filing reference.
What this report covers
This is the 2026 financial-stability snapshot for London — UK companies whose registered office sits inside the M25. The sample of 113 active filers delivers an average revenue of £9.6M at a 23.31% operating margin, the highest of any region in the 2026 directory.
For Archive Partners’ regional benchmarking, London is the reference point. Margin compression, sample scale, capital intensity and cash-flow stability in every other UK region are reported relative to London. Where another city’s margin sits materially below the London benchmark, the regional report is flagged as an Economic Alert rather than a routine snapshot.
How the headline numbers are computed
- Average revenue is the arithmetic mean of latest-filing turnover across the active sample, with the top and bottom 1% trimmed to suppress outliers.
- Average margin is operating profit / turnover, computed at the filing level then averaged across the sample.
- Risk Grade rolls up the 41 named stability checks the Pulse runs on every iXBRL filing in the regional sample.
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Want the London sample as a live feed?
The Data Market exposes every UK iXBRL filing by registered office, with the same 41 stability checks applied. Filter to a postcode area, a city or the full UK — JSON, CSV or webhook delivery, full filing-reference provenance.